AUSTIN, Texas (AP) — Texas child welfare officials said Wednesday they received three reports alleging abuse and neglect at a San Antonio coliseum that is holding more than 1,600 immigrant teenagers who crossed the southern border.

It is the first time state officials announced they are investigating such allegations at one of the emergency facilities the U.S. government has quickly set up in Texas amid a sharp increase in crossings of unaccompanied youths. A county official who also volunteers at the San Antonio site, the Freeman Coliseum, said the nature of the allegations do not align with...